I am trying to run Jupyter Lab on Ubuntu and it doesn't find any kernels. In the "Select Kernel" modal, the only option is "No Kernel".
In the console I get the errors:
[W 2021-09-08 15:21:09.834 ServerApp] Kernel 'Python 3' is referencing a kernel provisioner ('local-provisioner') that is not available. Ensure the appropriate package has been installed and retry.
[W 2021-09-08 15:21:09.850 ServerApp] Kernel 'Python 2' is referencing a kernel provisioner ('local-provisioner') that is not available. Ensure the appropriate package has been installed and retry.
[W 2021-09-08 15:21:09.868 ServerApp] Kernel 'local-venv' is referencing a kernel provisioner ('local-provisioner') that is not available. Ensure the appropriate package has been installed and retry.
[W 2021-09-08 15:21:09.888 ServerApp] Kernel 'R' is referencing a kernel provisioner ('local-provisioner') that is not available. Ensure the appropriate package has been installed and retry.
I have python2, python3 and R kernels installed and they are working in Hydrogen. I tried both installing them globally and running:
pip3 install ipykernel --upgrade
python3 -m ipykernel install --user
As well as from a virtualenv with:
source your-venv/bin/activate
(your-venv)$ pip install jupyter
(your-venv)$ ipython kernel install --name "local-venv" --user
Am I missing something?
Edit:
$jupyter kernelspec list
[ListKernelSpecs] WARNING | Kernel 'Python 3' is referencing a kernel provisioner ('local-provisioner') that is not available. Ensure the appropriate package has been installed and retry.
[ListKernelSpecs] WARNING | Kernel 'Python 2' is referencing a kernel provisioner ('local-provisioner') that is not available. Ensure the appropriate package has been installed and retry.
[ListKernelSpecs] WARNING | Kernel 'local-venv' is referencing a kernel provisioner ('local-provisioner') that is not available. Ensure the appropriate package has been installed and retry.
[ListKernelSpecs] WARNING | Kernel 'R' is referencing a kernel provisioner ('local-provisioner') that is not available. Ensure the appropriate package has been installed and retry.
No kernels available